Ancient Refuge in the Holy Land (Nov. 2004)

Israel's remote Cave of Letters holds clues to a Jewish uprising against the Romans. Watch now (49 mins.)

Cracking the Maya Code (Apr. 2008)

The story behind the centuries-long decipherment of ancient Maya hieroglyphs. Watch now (49 mins.)

Lost Treasures of Tibet (Feb. 2003)

A crack restoration team tries to prevent priceless medieval Buddhist murals from crumbling into dust. Watch now (50 mins.)

Secrets of the Parthenon (Jan. 2008)

How did the ancient Athenians build this near-flawless icon of Greece's golden age? Watch now (49 mins.)